Precise injection mold for plastic structural part of automobile lamp

Abstract

The invention discloses a precise injection mold of an automobile lamp plastic structural member, which comprises a rack and a base fixed on the rack, the rack is provided with a plurality of injection molding systems which are independently arranged and an injection molding material input system connected with the injection molding systems, the rack is provided with a cabin for installing the injection molding systems, the rack is also provided with an installation frame, and the installation frame is provided with an injection molding material output system connected with the injection molding material input system. A demolding system connected with the injection molding system is arranged on the mounting frame, and the injection molding system is connected with an air cooling system, a circulating system and a water cooling system. Comprising a machine frame and a base fixed to the machine frame, the machine frame is provided with a plurality of independently-arranged injection molding systems and an injection molding material input system connected with the injection molding systems, the machine frame is provided with a cabin used for installing the injection molding systems, the machine frame is further provided with an installation frame, and the installation frame is provided with a demolding system connected with the injection molding systems. The injection molding system is connected with an air cooling system, a circulating system and a water cooling system, the air cooling system is arranged on the rack, and the water cooling system is arranged on the base.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to a precision injection mold for a plastic structural part of an automobile lamp. Background Art

[0002] Car lights are an important part of a car. The shell of a car light is mostly made of plastic and consists of multiple structural parts or an integrated structure. The injection molding of car light molds generally has two structures: upper and lower opening and closing molds and left and right opening and closing molds. The vertical structure of the left and right opening and closing molds is convenient for cooling after demolding, and a robotic arm can be used on one side to remove the molding mold under demolding. During the injection molding process, it is necessary to wait for a long time for heat dissipation to complete the molding of the precision sample of the car light, which reduces the processing and molding efficiency of the precision sample of the car light; and after the precision sample of the car light is formed, it needs to be manually demolded. Since the precision sample of the car light is located inside the molding cavity, the demolding process is difficult and requires a lot of time, which reduces the production efficiency of the precision sample of the car light. Since the injection molding of the mold requires closing the mold first, then injection molding, demolding, and demolding, the above steps must be repeated once for each processing of a group, and the overall efficiency is low, affecting production capacity, and it is impossible to monitor the injection molded parts, and the precision is low and the reliability is poor. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art solutions, the present invention provides a precision injection mold for a plastic structural part of an automobile lamp, which can effectively solve the problems raised by the background art.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A precision injection mold for a plastic structural part of a car lamp, comprising a frame and a base fixed on the frame, the frame being provided with a plurality of independently arranged injection molding systems and an injection molding material input system connected to the injection molding systems, the frame being provided with a cabin for installing the injection molding systems, the frame being further provided with a mounting frame, the mounting frame being provided with a demoulding system connected to the injection molding systems, the injection molding systems being connected with an air cooling system, a circulation system and a water cooling system, the air cooling system being provided on the frame, and the water cooling system being provided on the base;

[0006] The injection molding system comprises a movable mold seat, a molding cavity and a fixed mold seat in sequence, wherein a cooling water channel connected to a water cooling system is provided at the bottom of the molding cavity, the water cooling system comprises a plurality of water tanks, condensation pipes arranged in the water tanks and a water channel connection structure, a movable plate is provided on the movable mold seat, the movable plate is connected to the demoulding system, a fixed plate is provided at the bottom of the fixed mold seat, the fixed plate is provided with a chassis, and the chassis is provided with a data transmission module, a monitoring module and a control module;

[0007] The injection material input system includes a water pipe, an injection material control valve and a plurality of output channels, the output channels are connected to the molding cavity, the injection material control valve is connected to a temperature detection module, and the output channels are connected to the molding cavity.

[0008] As a further description of the above technical solution, the number of cabins is 4, wherein a limiting structure is provided at the connection between the movable mold base and the cabin, a fixing structure is provided at the connection between the fixed mold base and the cabin, the limiting structure includes a group of positioning seats, and the fixing structure includes a fixing seat.

[0009] As a further description of the above technical solution, the positioning seat is symmetrically arranged on the side wall of the cabin, the positioning seat is provided with a limiting groove, the fixing seat is provided with a plurality of threaded holes, and the fixing seat is fixedly connected to the fixed mold seat by bolts.

[0010] As a further description of the above technical solution, the demolding system includes a hydraulic drive module and a lifting structure, the hydraulic drive module is connected to the lifting structure, the lifting structure is connected to the movable plate, and the movable plate is fixedly connected to the movable mold base, wherein the hydraulic drive module includes a hydraulic cylinder, the lifting structure includes a plurality of push rods, and the hydraulic cylinder is arranged on a mounting frame.

[0011] As a further description of the above technical solution, the circulation system includes a water inlet seat, a water outlet seat, a coolant output pipe, a coolant input pipe and a water pump. The water outlet seat and the water pump are both connected to the water tank, the water inlet seat is connected to the water channel structure, the coolant output pipe is respectively connected to the water inlet seat and the water outlet seat, the coolant input pipe is connected to the water pump, and the water channel structure is embedded in the molding cavity.

[0012] As a further description of the above technical solution, the water channel structure includes a coolant control valve, a water injection pipe and a plurality of cooling pipes. The cooling pipe is laid in a circuitous manner at the bottom of the molding cavity. The cooling pipe is provided with a water outlet and a water inlet. The water outlet is connected to the coolant output pipe, the water inlet is connected to the water injection pipe, and the water injection pipe is connected to the coolant input pipe.

[0013] As a further description of the above technical solution, an injection channel is provided on the molding cavity, the injection channel is connected to the output channel, the output channel is connected to a water pipe, the water pipe is connected to an injection molding control valve, and a sealing flange is provided at the connection between the water pipe and the injection molding control valve.

[0014] As a further description of the above technical solution, the data transmission module is electrically connected to the monitoring module, the data transmission module is controlled by a single general-purpose computer that performs both machine control functions and human-machine interface functions, and the monitoring module is signal-connected to the temperature detection module.

[0015] As a further description of the above technical solution, a heat dissipation port is provided on one side of the cabin, a fan is provided in the heat dissipation port, a heat conduction plate is connected between the cabin and the molding cavity, and the heat conduction plate is provided in the heat dissipation port.

[0016] As a further description of the above technical solution, the water tanks are arranged in a line along the length direction of the base, and each of the water tanks is connected with a channel, wherein the condensation pipe is passed through each of the water tanks.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The precision injection mold of the automobile lamp plastic structural part of the present invention has at least one of the following beneficial effects during use:

[0019] It is suitable for the injection molding of plastic structural parts of automobile headlights. Four injection molds are set on the frame, which can be used for injection molding according to different specifications of plastic structural parts of headlights. The data transmission module and the monitoring module can receive and monitor signals, and the injection molding data of the signal mold can be fed back in real time. Through digital control of injection molding, the injection molding accuracy and injection molding qualification rate are greatly improved. Each injection molding system is installed on the frame in an independent manner, and each injection molding system is connected to an air cooling system and a water cooling system. The water cooling system is circulated and cooled through a circulation system, which improves the injection molding efficiency and has the effect of energy saving and environmental protection. The injection molding system divides the injection molding into four parts through the injection molding input system, and connects the injection molding runners respectively through the output runners. The injection molding runners are connected to the molding cavity for injection molding, and the mold is demolded through the demolding system after the injection molding is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a precision injection mold for a plastic structural part of an automobile lamp according to the present invention;

[0021] Figure 2 This is a schematic diagram of the first side structure of a precision injection mold for a plastic structural part of a car lamp according to the present invention;

[0022] Figure 3 This is a schematic diagram of the second side structure of a precision injection mold for a plastic structural part of a car lamp according to the present invention;

[0023] Figure 4 This is a perspective structural diagram of the first part of a precision injection mold for a plastic structural part of an automobile lamp according to the present invention;

[0024] Figure 5 This is a perspective structural schematic diagram of the second part of a precision injection mold for a plastic structural part of an automobile lamp according to the present invention.

[0025] Numbers in the figure:

[0026] 1. Rack; 101. Base; 102. Chassis; 103. Data transmission module; 104. Monitoring module; 105. Mounting frame; 106. Limiting structure; 2. Injection molding system; 201. Moving mold base; 202. Fixed mold base; 203. Molding cavity; 204. Injection molding flow channel; 205. Movable plate; 206. Fixed plate; 3. Injection molding material input system; 301. Water pipe; 302. Temperature detection module; 303. Sealing flange; 304. Injection molding material control valve; 305. Output flow duct; 4. air cooling system; 401. heat dissipation port; 402. fan; 5. circulation system; 501. water inlet seat; 502. coolant output pipe; 503. coolant input pipe; 504. water pump; 505. water outlet seat; 6. water cooling system; 601. water tank; 602. cooling water circuit; 603. water injection pipe; 604. coolant control valve; 605. condenser; 7. demoulding system; 701. hydraulic drive module; 702. lifting structure; 703. push rod; 704. hydraulic cylinder. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1-5 As shown, the present invention provides a precision injection mold for a plastic structural part of an automobile lamp, comprising a frame 1 and a base 101 fixed on the frame 1, the frame 1 is provided with a plurality of independently arranged injection molding systems 2 and an injection material input system 3 connected to the injection molding system 2, the frame 1 is provided with a cabin for installing the injection molding system 2, the frame 1 is also provided with a mounting frame 105, the mounting frame 105 is provided with a demoulding system 7 connected to the injection molding system 2, the injection molding system 2 is connected with an air cooling system 4, a circulation system 5 and a water cooling system 6, the air cooling system 4 is arranged on the frame 1, and the water cooling system 6 is arranged on the base 101.

[0029] This embodiment is suitable for the injection molding of automobile headlight plastic structural parts, wherein 4 injection molds are arranged on the frame 1, and injection molding can be performed according to different specifications of automobile headlight plastic structural parts, and the data transmission module 103 and the monitoring module 104 can receive and monitor signals, and the injection molding data of the signal mold can be fed back in real time. By controlling the injection molding by data, the injection molding accuracy and the injection molding qualification rate are greatly improved. Each injection molding system 2 is installed on the frame 1 in an independent manner, and each injection molding system 2 is connected to the air cooling system 4 and the water cooling system 6, wherein the water cooling system 6 is circulated and cooled through the circulation system 5, which improves the injection molding efficiency and plays an energy-saving and environmental protection effect. The injection molding system 2 divides the injection molding into four parts through the injection molding input system 3, and connects the injection molding flow channel 204 respectively through the output flow channel 305. The injection molding flow channel 204 is connected to the molding cavity 203 for injection molding, and the demolding is performed through the demolding system 7 after the injection molding is completed.

[0030] The injection molding system 2 includes a movable mold base 201, a molding cavity 203 and a fixed mold base 202 in sequence, wherein a cooling water channel 602 connected to a water cooling system 6 is provided at the bottom of the molding cavity 203, and the water cooling system 6 includes a plurality of water tanks 601, a condenser 605 provided in the water tank 601 and a water channel connection structure, a movable plate 205 is provided on the movable mold base 201, and the movable plate 205 is connected to the demoulding system 7, a fixed plate 206 is provided at the bottom of the fixed mold base 202, and the fixed plate 206 is provided with a chassis 102, and the chassis 102 is provided with a data transmission module 103, a monitoring module 104 and a control module.

[0031] In this embodiment, the cooling water flow rate of the injection mold is between 0.4-0.9L / min, the pressure is between 0.2-0.4MPa, and the temperature is below 50°C. During the injection molding process, the molten plastic material is usually sent into the mold cavity in the clamping system by a syringe with a smaller diameter, and injected under high pressure, and then fully cooled to facilitate the solidification of the material in the mold cavity. The headlight structural parts can be injection molded by replacing different injection molds, and are also suitable for injection molding headlight structural parts of different colors. Specifically, the water pipe 301 in the injection material input system 3 can be replaced, corresponding to the replacement of the water pipes 301 of the four independent flow channels.

[0032] The injection material input system 3 includes a water pipe 301 , an injection material control valve 304 and a plurality of output channels 305 , wherein the output channels 305 are connected to the molding cavity 203 , the injection material control valve 304 is connected to a temperature detection module 302 , and the output channels 305 are connected to the molding cavity 203 .

[0033] It is further explained that the number of cabins is 4, wherein a limiting structure 106 is provided at the connection between the movable mold base 201 and the cabin, and a fixing structure is provided at the connection between the fixed mold base 202 and the cabin, the limiting structure 106 includes a group of positioning seats, and the fixing structure includes a fixing seat.

[0034] It is further explained that the positioning seat is symmetrically arranged on the side wall of the cabin, the positioning seat is provided with a limiting groove, the fixing seat is provided with a plurality of threaded holes, and the fixing seat is fixedly connected to the fixed mold seat 202 by bolts.

[0035] It is further explained that the demoulding system 7 includes a hydraulic drive module 701 and a lifting structure 702, the hydraulic drive module 701 is connected to the lifting structure 702, the lifting structure 702 is connected to the movable plate 205, the movable plate 205 is fixedly connected to the movable mold base 201, wherein the hydraulic drive module 701 includes a hydraulic cylinder 704, the lifting structure 702 includes a plurality of push rods 703, and the hydraulic cylinder 704 is arranged on the mounting frame 105.

[0036] It is further explained that the circulation system 5 includes a water inlet seat 501, a water outlet seat 505, a coolant output pipe 502, a coolant input pipe 503 and a water pump 504. The water outlet seat 505 and the water pump 504 are both connected to the water tank 601. The water inlet seat 501 is connected to the water channel structure. The coolant output pipe 502 is respectively connected to the water inlet seat 501 and the water outlet seat 505. The coolant input pipe 503 is connected to the water pump 504. The water channel structure is embedded in the molding cavity 203.

[0037] It is further explained that the water channel structure includes a coolant control valve 604, a water injection pipe 603 and a plurality of cooling pipes. The cooling pipe is laid in a circuitous manner at the bottom of the molding cavity 203. The cooling pipe is provided with a water outlet and a water inlet. The water outlet is connected to the coolant output pipe 502, the water inlet is connected to the water injection pipe 603, and the water injection pipe 603 is connected to the coolant input pipe 503.

[0038] It is further explained that an injection molding channel 204 is provided on the molding cavity 203, and the injection molding channel 204 is connected to the output channel 305, and the output channel 305 is connected to the water pipe 301, and the water pipe 301 is connected to the injection molding control valve 304, and a sealing flange 303 is provided at the connection between the water pipe 301 and the injection molding control valve 304.

[0039] It is further explained that the data transmission module 103 is electrically connected to the monitoring module 104 , the data transmission module 103 is controlled by a single general-purpose computer that performs both machine control functions and human-machine interface functions, and the monitoring module 104 is signal-connected to the temperature detection module 302 .

[0040] It is further explained that a heat dissipation port 401 is provided on one side of the nacelle, a fan 402 is provided in the heat dissipation port 401 , a heat conduction plate is connected between the nacelle and the molding cavity 203 , and the heat conduction plate is provided in the heat dissipation port 401 .

[0041] It is further explained that the water tanks 601 are arranged in a line along the length direction of the base 101 , and each of the water tanks 601 is connected with a channel, wherein the condensation pipe 605 is penetrated in each of the water tanks 601 .

[0042] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A precision injection mold for a plastic structural part of a car lamp, characterized by: It comprises a frame and a base fixed on the frame, the frame is provided with a plurality of independently arranged injection molding systems and an injection material input system connected to the injection molding systems, the frame is provided with a cabin for installing the injection molding system, the frame is also provided with a mounting frame, the mounting frame is provided with a demoulding system connected to the injection molding system, the injection molding system is connected with an air cooling system, a circulation system and a water cooling system, the air cooling system is arranged on the frame, and the water cooling system is arranged on the base; The injection molding system comprises a movable mold seat, a molding cavity and a fixed mold seat in sequence, wherein a cooling water channel connected to a water cooling system is provided at the bottom of the molding cavity, the water cooling system comprises a plurality of water tanks, condensation pipes arranged in the water tanks and a water channel connection structure, a movable plate is provided on the movable mold seat, the movable plate is connected to the demoulding system, a fixed plate is provided at the bottom of the fixed mold seat, the fixed plate is provided with a chassis, and the chassis is provided with a data transmission module, a monitoring module and a control module; The injection material input system includes a water pipe, an injection material control valve and a plurality of output channels, the output channels are connected to the molding cavity, the injection material control valve is connected to a temperature detection module, and the output channels are connected to the molding cavity.

2. The precision injection mold for a plastic structural part of a car lamp according to claim 1, characterized in that: The number of cabins is 4, wherein a limiting structure is provided at the connection between the movable mold base and the cabin, and a fixing structure is provided at the connection between the fixed mold base and the cabin, wherein the limiting structure includes a group of positioning seats, and the fixing structure includes a fixing seat.

3. The precision injection mold for the plastic structural part of a car lamp according to claim 2, characterized in that: The positioning seat is symmetrically arranged on the side wall of the cabin, the positioning seat is provided with a limiting groove, the fixing seat is provided with a plurality of threaded holes, and the fixing seat is fixedly connected to the fixed mold seat by bolts.

4. The precision injection mold for a plastic structural part of a car lamp according to claim 1, characterized in that: The demoulding system includes a hydraulic drive module and a lifting structure, wherein the hydraulic drive module is connected to the lifting structure, the lifting structure is connected to a movable plate, and the movable plate is fixedly connected to a movable mold base, wherein the hydraulic drive module includes a hydraulic cylinder, the lifting structure includes a plurality of push rods, and the hydraulic cylinder is arranged on a mounting frame.

5. The precision injection mold for a plastic structural part of a car lamp according to claim 1, characterized in that: The circulation system includes a water inlet seat, a water outlet seat, a coolant output pipe, a coolant input pipe and a water pump. The water outlet seat and the water pump are both connected to a water tank. The water inlet seat is connected to a water circuit structure. The coolant output pipe is respectively connected to the water inlet seat and the water outlet seat. The coolant input pipe is connected to the water pump. The water circuit structure is embedded in the molding cavity.

6. The precision injection mold for the automobile lamp plastic structural part according to claim 5, characterized in that: The water channel structure includes a coolant control valve, a water injection pipe and a plurality of cooling pipes. The cooling pipe is laid in a circuitous manner at the bottom of the molding cavity. The cooling pipe is provided with a water outlet and a water inlet. The water outlet is connected to the coolant output pipe, the water inlet is connected to the water injection pipe, and the water injection pipe is connected to the coolant input pipe.

7. The precision injection mold for a plastic structural part of a car lamp according to claim 1, characterized in that: The molding cavity is provided with an injection channel, the injection channel is connected to the output channel, the output channel is connected to a water pipe, the water pipe is connected to an injection molding control valve, and a sealing flange is provided at the connection between the water pipe and the injection molding control valve.

8. The precision injection mold for a plastic structural part of a car lamp according to claim 1, characterized in that: The data transmission module is electrically connected to the monitoring module, the data transmission module is controlled by a single general-purpose computer that performs both machine control functions and human-machine interface functions, and the monitoring module is signal-connected to the temperature detection module.

9. The precision injection mold for a plastic structural part of an automobile lamp according to claim 1, characterized in that: A heat dissipation port is provided on one side of the cabin, a fan is provided in the heat dissipation port, a heat conduction plate is connected between the cabin and the molding cavity, and the heat conduction plate is provided in the heat dissipation port.

10. The precision injection mold for automobile lamp plastic structural parts according to claim 1, characterized in that: The water tanks are arranged in a line along the length direction of the base, and each of the water tanks is connected with a channel, wherein the condensation pipe is passed through each of the water tanks.

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